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Carl%20Sagan%20-%20The%20Demon%20Haunted%20World

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Maxwell and The Nerds<br />

from Earth, bouncing them off Venus, and detecting the faint<br />

echoes, is named after him.<br />

Less than a century after Maxwell's prediction of radio waves, the<br />

first quest was initiated for signals from possible civilizations on<br />

planets of other stars. Since then there have been a number of<br />

searches, some of which I referred to earlier, for the time-varying<br />

electric and magnetic fields crossing the vast interstellar distances<br />

from possible other intelligences - biologically very different from<br />

us - who had also benefited sometime in their histories from the<br />

insights of local counterparts of James Clerk Maxwell.<br />

In October 1992, in the Mojave Desert, and in a Puerto Rican<br />

karst valley, we initiated by far the most promising, powerful and<br />

comprehensive search for extraterrestrial intelligence (SETI). For<br />

the first time NASA would organize and operate the programme.<br />

The entire sky would be examined over a ten-year period with<br />

unprecedented sensitivity and frequency range. If, on a planet of<br />

any of the 400 billion other stars that make up the Milky Way<br />

galaxy, anyone had been sending us a radio message, we might<br />

have had a pretty fair chance of hearing them.<br />

Just one year later, Congress pulled the plug. SETI was not of<br />

pressing importance; its interest was limited; it was too expensive.<br />

But every civilization in human history has devoted some of its<br />

resources to investigating deep questions about the Universe, and<br />

it's hard to think of a deeper one than whether we are alone. Even<br />

if we never decrypted the message contents, the receipt of such a<br />

signal would transform our view of the Universe and ourselves.<br />

And if we could understand the message from an advanced<br />

technical civilization, the practical benefits might be unprecedented.<br />

Far from being narrowly based, the SETI programme,<br />

strongly supported by the scientific community, is also embedded<br />

in popular culture. The fascination with this enterprise is broad<br />

and enduring, and for very good reason. And far from being too<br />

expensive, the programme would have cost about one attack<br />

helicopter per year.<br />

I wonder why those members of Congress concerned about<br />

price tags don't devote greater attention to the Department of<br />

Defense, which, with the Soviet Union gone and the Cold War<br />

371

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